Pneumatic stacker for stalk-shredding machines.



No. 715,760. Patented Dec. 5,1902.

0. E. curmss; PNEUMATIC STACKER FOR STALK SHBED DING MACHINES.-

(Applicntiqn filed June 28, 1902.) (No Model.) 3 Sheets- 8M l.

Wimess Q I IW/UQfl/iOT K (1.5 W

0.1a. cun'n-ss. PNEUMATIC STAGKER FDR STALK SI'IBEDDING IACHINES.

(Application fllqd June 28, 1902. fllollodem 3 Sheets-Sheet 2.

No. 715,760; Patented Dec l6, 19,02.

No. 715,760. Patented Dec. I6, 1902.

C. E. CURTISS- PNEUMATIC STACKER FOR STALK SHREDDING MACHINES.

(Application filed June 2B, 1902.

(No llodel.) 3 Sheets-Shut 3.

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UNITED STATES PATENT OFFICE.

CHARLES E. CURTISS, OF CHICAGO, ILLINOIS, ASSIGNOR TO INTERNATIONALHARVESTER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

PNEUMATIC STACKER FOR STALK-SHREDDING MACHINES.

SPECIFICATION forming part of Letters Patent No. 715,760, dated December16, 1902. Application filed June 28, 1902. Serial No. 113,602. (Nomodel.)

TO all whom it may OW tened to the under side of the flooring d by Be itknown that I, CHARLES E. CURTIss, cross-strips at their ends and ofcourse move acitizen of the United States, residing at Chiwith theshaker as it is vibrated back and cago, county of Cook, State ofIllinois, have forth.

5 invented certain new and useful Improve- The machine is provided withtwo rotary mentsin Pneumatic StackersforStalk-Shredfan-blowers havingseparate casings j, one ding Machines; and I do hereby declare thelocated at each side under the discharge end following to be a full,clear, and exact deof the shaker. These casings are closed on scriptionof the invention, such-as will enable their outer sides, as shown at jin Fig. 2, and

I0 others skilled in the art to which it apperhave the central openings7t, which form the tains to make and use the same. eyes of the blowers,on their inner sides.

Theinvention relates generally to machines The fan in each of theseblowers is located a for shredding fodder, and particularly to thelittle'eccentric to its casing, the path of revocombination therewithofapneumatic stacker lution of the outer edges of the vanes being I 5for blowing the shredded stalks and blades nearer the upper edge of themouth, which from the machine to the stack. forms a cut-0E for theblast. Each casing The invention is. illustrated in the accomhas itsmouth 1 projecting tangentially from panying drawings, wherethe lowerside, and spanning the space be- Figure 1 'is a central longitudinalvertical tween the casings and closing it completely :0 section of thatpart of a shredder to which at the rear side there is an apron m, whichtheinvention relates, showing also the receivcurves upward above thelevel of the eyes of ing end of the conveyer-trunk. Fig. 2 is a theblowers and thence extends forward in a plan View of the same on theline 22. Fig. straight line, inclining downwardly, as shown Fig. 3 is avertical cross-section on the line in Fig. 1, so as to form a chute nunderneath 2 5 3 3, and Figs. 4 and 5 are detail views ofthe theopeningt' between the oppositely-inclined means for adjusting the angleof the screen chutes h h. At the sides of this rearwardlywhich underliesthe shaker. inclined chute there are preferably arranged Referring tothe views, aa, 850., denote the side boards or curtains o, as shown inFig. 1. framing of the shredder, which may be built Underneath theshaker, with its forward 30 up in any preferred manner. The shaker, endextending beyond the rear edge of the with which all shredders of thistype are prochute n, there is arranged a screen 10, which vided andwhich forms the bottom of the is considerably narrower than the shakerand chamber wherein the fodder is cut, consists is approximately thewidth of the space beof side boards 0 and a flooring d, usually of tweenthe blower-casings. This screen is 3 5 metal, a portion of which isperforated or connected at its forward end by bars q to the slitted. vToothed bars 6 are secured to this pivoted posts g, which serve tosupport the 8 flooring and extend longitudinally, and the shaker andvibrate it, and at its rear end it shaker is supported at the dischargeend on is supported by links 7', that are pivoted at rollers f and isupheld at the opposite end by their lower ends on the cranked part of a40 a pivoted post g. Thus supported it is pershaft 3, which is journaledin bearings t at mitted to be vibrated in the usual way. opposite sidesof the machine. The shaft 8 Underneath the shaker-flooring dthere are isprovided with a crank-arm s at one end, arranged two chutes h h,whichincline downby means of which it may be rocked to raise Wardin oppositedirections toward an opening and lower the discharge end of the screen,45 2', located about centrally of the length of the and the arm .9 isprovided with some conperforated part of the flooring, and the sidesvenient means for locking itas, for exam- 5 of both chutes arepreferably inclined toward ple, a slotted strap u and thumb-screw o.

the longitudinal center of the machine, as As will be understood onreference to Fig. illustrated in Fig. 3. These chutes are fas- 1, thechute n is stationary, but the shaker vibrates to and fro and carriesoppositelyinclined chutes h h with it. The screen 19 also vibrates withthe shaker, but has a shorter movement, and in the operation of themachine the shelled corn, dirt, and other heavier matter which passesthrough the perforated floor of the shaker falls through the opening 2'on the forward end of the stationary chute and thence passes off to thescreen 19. When the shaker is in its forwardmost position, the opening iis beyond the edge of the fixed chute, and the falling material isdirected onto the forward part of the screen 1); but on the returnmovement of the shaker the material is delivered onto the chute n andfalls thence upon the forward part of the screen. In this manner all theshelled corn is made to travel the whole length of the screen and isthoroughly cleaned.

The conveyer-trunk is shown at ct in Figs. 1 and 2. Instead of beingconstructed as heretofore it is widened out at its forward or receivingend, so as to take in the deliverymouths Z of both blowercasings. Thisend of the trunk forms a sort of hood which is closed at the bottom, butis open at the top and rear side. In the lower part of the receiving endthe hood is provided with blastpassages 12, one for each of theblower-casings. These passages join each other and unite in the frontend of the hood, where it narrows into the trunk proper, but areseparated from each other between the mouths of the blower-casings by apartition 0', so that the air enters the hood only at the sides andbottom.

The conveyer-trunk is pivotally connected to the blower-casings at d inthe usual way and when in operative position stands about as representedin Fig. 1, with the discharge end of the shaker inclosed between itssides and the mouths l of the blower-casings fitted into the rear endsof the blast-passages b. When found necessary, an additional means foradjustment may be provided by making a joint :10 in the trunk beyond thehood. The upper part of the rear end of the hood therefore forms athroatway, through which the shredded fodder is delivered from thedischarge end of the shaker into the trunk, and it is so constructed andproportioned as to prevent back draft; but in order to further provideagainst any possibility of this back draft a damper d is pivoted in theupper part of the hood and is provided with a screwrod 6' and thumb-nutffor adjusting it so as to contract or enlarge the throat.

As the shaker vibrates the shredded material passes ofi" the end andfalls into the chute, and for the purpose of insuring its delivery atthe right point in the hood there is provided an apron g,which ispivoted at its upper end to the discharge end of the chute and restsfreely at its lower end on the top a of the inclosed space in the lowerpart of the hood, which partitions off the two blast-passages. As theshaker vibrates this apron slides freely to and fro on this top anddelivers the cut stalks, blades, 850., well forward into the body of thehood.

The coaction of the chutes leading from the perforated part of theshakerfloor to the screen p has already been described, and, as will beunderstood, the shelled corn is discharged into a trough t", whence itis carried to any suitable point of delivery. The fine heavydirt andtrash pass through the screen 19; but there is agood deal of chaif andother light stuff which itis desirable should be conducted away to thestack, and the adjustment of the discharge end of the screen nearer toor farther from the fixed chute overhead provides for increasing ordiminishing the effect of the draft entering the eyes of the blowers bynarrowing or widening the passage-way through which it passes. To stillfurther regulate this draft, there is pivoted to the lower part of theshield ma damper Z, which is made adjustable by a rod n and a setscrew0'. It is to be noted in respect to this part of the machine that thechaff and light stuff coming from the shaker is delivered into the eyesof the blowers and through them into the trunk instead of passingdirectly from the screen into the open end of the trunk.

The operation of the machine will be fully understood without furtherdescription.

Having thus described my invention, what I claim is- 1. A conveyer-trunkfor pneumatic stackers, having an enlarged hood or receiving end, aclosed center, and separate blast-passages at the sides.

2. The combination with the shaker, of a pneumatic conveyer-trunk, andindependent blowers located under the discharge end of the shaker, thetrunk having an enlarged hood or receiving end provided with separateblast-passages connecting with the independent blowers, and the endbeing closed between the passages.

3. The combination with the shaker, of a pneumatic conveyer-trunk, thereceiving end of the trunk being enlarged to inclose the discharge endof the shaker, and the latter hav ing an inclined apron pivoted theretoso as to deliver the material forward into the trunk.

4. The combination with the shaker, of a pneumatic conveyer-trunk,blowers located under the discharge end of the shaker at each sidethereof, the conveyer-trunk having an enlarged hood or receiving end, aclosed center, and separate blast-passages communicating with theblowers, the discharge end of the shaker projecting into the trunk so asto deliver the out material directly thereto, and chutes for deliveringthe chaff and other light material which passes through the shaker intothe conveyor-trunk through the blower-casings.

5. The combination of independent blowers at opposite sides of themachine, the casings of said blowers being closed on their IIO outersides and open on their inner sides, a shaker delivering the outmaterial beyond the casing, a screen underlying the shaker, and a chutedelivering the material passing through the shaker onto the screenwhence the chaff passes into the blower-casings.

6. The combination with a shaker, of a pneumatic conveyer-trunk, ablower under the delivery end of the shaker having one side of itscasing closed and a mouth opening into the trunk, and a chute under theshaker for directing the material that passes through the shaker intothe blower-casing.

7. The combination with independent blowers at opposite sides of themachine, having their casings closed on the outer sides and providedwith central openings on the inner sides, of a conveyor-trunk having itsreceiving end provided with separate blast-openings to accommodate theseparate blowers, a shaker for delivering the cut material into thetrunk beyond the blowers, and chutes for directing the chaif and otherlight material into the openings in the inner sides of the casings.

8. The combination of the shaker, the in dependent blowers at the sidesof the machine, the blower-casings being closed at the outer sides andhaving central openings at the inner sides, the shield m closing thespace between the blowers at the rear side, and the chute n fordirecting the material which falls through the shaker in rear of theshield.

9. The combination of the independent blowers at opposite sides of themachine, having their casings closed on the outside and open on theinside, the shield m closing the space between the casings at the rear,the chute n projecting forwardly from the upper side of the shield so asto leave the space between the blowers open at the front side, and theadjustable damper at the lower side of the shield to contract or enlargesaid space.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES E. CURTISS.

Witnesses:

CHAS. N. CHAMBERS, F. H. GERE.

